Pest Alert – Landscape Issues in November
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Collapse ▲Be On the LookOut (BOLO) pest management updates from the NC State University Plant Disease and Insect Clinic (PDIC) are a great resource for keeping your garden healthy. Mike Munster, Plant Disease Diagnostician for Commercial Ornamentals, and Matt Bertone, PhD. posts these monthly pest management updates. They also do a live online class each month as well. Here is the November BOLO message.
Turfgrasses
- Fairy ring (all turfgrasses)
- Large patch (bermudagrass/zoysiagrass/centipedegrass/St. Augustinegrass)
- Leaf spot caused by Bipolaris/Drechslera (bluegrasses/bermudagrass)
- Microdochium patch (Kentucky bluegrass/bermudagrass) Red thread (Kentucky bluegrass/fescue/ryegrass)
- Rust (Kentucky bluegrass/fescue/St. Augustinegrass/zoysiagrass)
- Yellow patch (fescue/Kentucky bluegrass/ryegrass)
Woody Ornamentals
- Multiple hosts: Phytophthora root rot, Armillaria root rot (may still produce mushrooms early in the month), Botryosphaeria dieback, sooty mold, conks of wood decay fungi such as Pseudoinonotus dryadeus, improper planting
- Multiple shrub species: root-knot nematodes
- Arborvitae: Phytophthora root rot, Armillaria root rot
- Azalea: Phytophthora root rot, Armillaria root rot, Phomopsis dieback, stunt nematode
- Boxwood: Phytophthora root rot, boxwood blight, boxwood stem canker (Colletotrichum theobromicola), nematodes (lesion, root-knot, spiral)
- Cherry-laurel: shot-hole
- Indian hawthorn: Entomosporium leaf spot
- Japanese black pine: pine wilt nematode
- Japanese holly: black root rot, Armillaria root rot
- Junipers: Phytophthora root rot (except Eastern red cedar), Armillaria root rot
- Leyland cypress: cypress (Seiridium) canker, Botryosphaeria canker/dieback
- Ligustrum (privet): Cercospora (Pseudocercospora) leaf spot
- Magnolia, Southern: algal leaf spot
- Oaks: Biscogniauxia canker Red-tip photinia: Entomosporium leaf spot
- Rose: Armillaria root rot, crown gall, black spot, rose rosette
- Spruce: Rhizosphaera needle cast
Herbaceous Ornamentals (Perennials, Bedding Plants)
- Multiple species: frost damage
- Liriope: anthracnose on leaf tips, Fusarium crown rot
- Pansy/viola: Phytophthora root and crown rot, black root rot, Pythium root rot
Fruits & Nuts
- Pecan: scab
Vegetables & Herbs
- Multiple species: frost damage, nutrient deficiency
- Cole crops: black rot, white leaf spot of turnip and
- Swiss chard, downy mildew, Alternaria leaf spot
Arthropods Associated with Multiple Plants
- Fall cankerworms (adults)
- Bagworms (Thyridopteryx ephemeraeformis; bags often containing eggs)